Patents Assigned to Evonik Energy Services LLC
  • PLUGGAGE REMOVAL METHOD FOR SCR CATALYSTS AND SYSTEMS
    Publication number: 20110207597
    Abstract: The present disclosure relates to methods for treating an SCR catalyst or components of an SCR system having a decreased NOx potential efficiency as a result of particulate pluggage in the system or in one or more channels in the SCR catalyst which renders at least a portion of the catalytic active areas inaccessible for the flue gas. The methods include removal of the particulates and plug(s) using a blasting stream of a pressurized carrier gas having a particulate blasting medium directed at the SCR catalyst or component of an SCR system.
    Type: Application
    Filed: May 4, 2011
    Publication date: August 25, 2011
    Applicant: Evonik Energy Services, LLC
    Inventors: Carsten Tembaak, Birgit L. Marrino, Albert Joseph Stier
  • METHOD OF REGENERATION OF SCR CATALYST POISONED BY PHOSPHOROUS COMPONENTS IN FLUE GAS
    Publication number: 20100240523
    Abstract: A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein the catalyst is poisoned by phosphorous components in the flue gas and the catalyst is treated using a base, preferably an alkali metal hydroxide.
    Type: Application
    Filed: June 3, 2010
    Publication date: September 23, 2010
    Applicant: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Methods of regeneration of SCR catalyst poisoned by phosphorous components in flue gas
    Patent number: 7741239
    Abstract: A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein the catalyst is poisoned by phosphorous components in the flue gas and the catalyst is treated using a base, preferably an alkali metal hydroxide.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: June 22, 2010
    Assignee: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Method of regeneration of SCR catalyst
    Patent number: 7723251
    Abstract: A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The method is suitable for use during neutralization using C1 to C8 carboxylic acids.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: May 25, 2010
    Assignee: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Methods of regeneration of SCR catalyst poisoned by phosphorous components in flue gas
    Publication number: 20090233787
    Abstract: A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein the catalyst is poisoned by phosphorous components in the flue gas and the catalyst is treated using a base, preferably an alkali metal hydroxide.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 17, 2009
    Applicant: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann
  • Method of regeneration of SCR catalyst
    Publication number: 20090233786
    Abstract: A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The method is suitable for use during neutralization using C1 to C8 carboxylic acids.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 17, 2009
    Applicant: Evonik Energy Services LLC
    Inventors: Hans-Ulrich Hartenstein, Thies Hoffmann